Description:
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My webapp uses mod_rewrite to rewrite URLs for easier processing in PHP:
> /user/cweiske -> user.php?name=cweiske

OAuth clients use http://example.org/user/cweiske as URL and generate the signature for it.

OAuthProvider::checkOAuthRequest() uses the same URL because I pass it, but it also uses the GET parameter $_GET[name] during signature verification.

Unsetting it via unset($_GET['name']) unfortunately does not work, so I'm left with invalid signatures.

I see two solutions:

1. Read the modified $_GET array
2. Add a "ignoreParam" method to OAuthProvider

(this is with pecl/oauth 1.2.3)